heat reducing materials
10-18-2006 | 10:58 PM
#1
Thread Starter
Junior Member
Joined: Sep 2006
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
From: Santa Fe, NM
heat reducing materials
I have just a quick question. Me and a couple of people are building a jet, but we came to a problem of redirecting the exhaust of the jet engines. we are using tin cans that are welded and shaped together due to their high melting and flash point(and low cost), but the heat would transfer rapidly through the material(which is dangerous since they are so close to wood, and jet fuel), is there any material that would reduce the heat, but not catch on fire. something like wool but better.
!
10-19-2006 | 09:22 AM
#4
My Feedback: (21)
RE: heat reducing materials
bro
redirecting the exhaust? is the engine internal or pod mounted? BVM heatshield works well, I purchased a ceramic blanket from aircraft spruce and specialties (thanks D' Freshness) that has a aluminum/fiberglass outer layer-ceramic inner layer-and lastly an adhesive backing. I've used it in 2 different airplanes and have found it invaluable.
I also used ventilation ducts (home depot variety) to redirect exhaust from a pod mounted engine (Kingcat, facet etc). just slip it up the tailpipe (
) either around the motor, or close to it and that should solve your dilemma, however, I'm not sure what / where you're trying to redirect gases from.
good luck
buck
redirecting the exhaust? is the engine internal or pod mounted? BVM heatshield works well, I purchased a ceramic blanket from aircraft spruce and specialties (thanks D' Freshness) that has a aluminum/fiberglass outer layer-ceramic inner layer-and lastly an adhesive backing. I've used it in 2 different airplanes and have found it invaluable.
I also used ventilation ducts (home depot variety) to redirect exhaust from a pod mounted engine (Kingcat, facet etc). just slip it up the tailpipe (
) either around the motor, or close to it and that should solve your dilemma, however, I'm not sure what / where you're trying to redirect gases from. good luck
buck
ORIGINAL: SkyrunnerJet
I have just a quick question. Me and a couple of people are building a jet, but we came to a problem of redirecting the exhaust of the jet engines. we are using tin cans that are welded and shaped together due to their high melting and flash point(and low cost), but the heat would transfer rapidly through the material(which is dangerous since they are so close to wood, and jet fuel), is there any material that would reduce the heat, but not catch on fire. something like wool but better.
I have just a quick question. Me and a couple of people are building a jet, but we came to a problem of redirecting the exhaust of the jet engines. we are using tin cans that are welded and shaped together due to their high melting and flash point(and low cost), but the heat would transfer rapidly through the material(which is dangerous since they are so close to wood, and jet fuel), is there any material that would reduce the heat, but not catch on fire. something like wool but better.
10-19-2006 | 01:28 PM
#5
Thread Starter
Junior Member
Joined: Sep 2006
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
From: Santa Fe, NM
RE: heat reducing materials
the engines are going to be mounted internally, and the exhaust has to be redirected for reasons of weight, center of gravity and space and an idea we are still contemplating. and thanks for the tips btw. we're gonna go back to the plans and see what we can and can't do as far as materials
10-19-2006 | 04:34 PM
#7
My Feedback: (2)
Joined: Apr 2004
Posts: 162
Likes: 0
Received 0 Likes
on
0 Posts
From: Sacramento,
CA
RE: heat reducing materials
There are special double wall pipes already made for this. Stainless steel inner, very thin and light weight, and aluminun outer with a space between for cooling air. See Tamjets website. Maybe you could add an outer to your tin can pipe if weight is not a problem. Dreamworks sells a ceramic blanket thats very thin.
John
John
